Answer Key

1 a.

769

1 b.

899

2 a.

449

2 b.

219

3 a.

699

3 b.

599

4 a.

89

4 b.

69

5 a.

739

5 b.

189

6 a.

209

6 b.

939

7 a.

649

7 b.

369

8 a.

919

8 b.

329

9 a.

829

9 b.

379

10 a.

79

10 b.

129

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